Exchange 2010 Delegates Redux

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So it seems that I am not alone in having issues with migrated accounts, even the might Microsoft themselves have issues here!

 This is good as it means they go out and write some mean PowerShell which we can all use!

Exchange 2010 is stricter in how it deals with delegates, if the user account cannot be found in AD then Exchange will refuse to show any of the delegates this results in Outlook hanging and eventually timing out when a user attempts to look at the delegates configuration tab.

Here's the link to clearing out your old delegates!

http://blogs.msdn.com/b/emeamsgdev/archive/2012/08/31/powershell-remove-invalid-delegates-from-mailboxes.aspx

This is a really nice and simple method of removing invalid delegates - the nice thing is it adds back all the correct delegates too!

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